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Advanced three-dimensional two-fluid porous media method for transient two-phase flow thermal-hydraulics in complex geometries
(Taylor & Francis Inc, Philadelphia, 2002)
A three-dimensional two-fluid model for two-phase flow, within tube or rod bundles is presented. The porous media concept is applied in the model statement Closure laws for interfacial mass, momentum and energy transfer, ...
Maximizing multistage turbine efficiency by optimizing hub and shroud shapes and inlet and exit conditions of each blade row
(Walter de Gruyter GmbH, 2000)
By matching a well established fast through-flow analysis code and an efficient optimization algorithm, a new design system has been developed which optimizes hub and shroud geometry and inlet and exit flow-field parameters ...
New analytical HFET I-V characteristics model
(National Institute of Optoelectronics, 2006)
In this paper the new analytical model of current - voltage characteristics of a Heterostructure Field Effect Transistor (HFET), is proposed. The model is relatively simple, and at the same time, it describes complex HFET ...
Novel approach to the investigation of carriers' concentration in various semiconductor structures
(National Institute of Optoelectronics, 2006)
In this paper modern approach to the investigation of carriers' concentration applicable to various semiconductor structures has been developed. The model has exploited transport equation with the quantum correction term ...
Application of Blanc's law at arbitrary electric field to gas density ratios
(Springer, New York, 2004)
Application of Blanc's law for drift velocities of electrons and ions in gas mixtures at arbitrary reduced electric field strengths E/n(0) was studied theoretically and by numerical examples. Corrections for Blanc's law ...
On a fixed point theorem of Kirk
(Academic Press Inc Elsevier Science, San Diego, 2005)
W.A. Kirk [J. Math. Anal. Appl. 277 (2003) 645-650] first introduced the notion of asymptotic contractions and proved the fixed point theorem for this class of mappings. In this note we present a new short and simple proof ...
Effects of oxidizer particle size on propellants based on modified polyvinyl chloride
(Amer Inst Aeronautics Astronautics, Reston, 2001)
The effects of the oxidizer particle size and size distribution on the burning rate of composite solid-rocket-propellant series known as Flexolite have been presented in this paper. All Flexolite-series propellants are ...
Estimation of elastic properties of a particulate polymer composite using a face-centered cubic FE model
(Elsevier, Amsterdam, 2004)
A three-dimensional (31)) finite element (FE) unit cell model is applied to studies on the elastic properties of ceramic spherical particle-polymer composite. In this model, hydroxyapatite particles (HAp) are assumed to ...
Ionization coefficients in gas mixtures
(Pergamon-Elsevier Science Ltd, Oxford, 2007)
We have tested the application of the common E/N (E-electric field, N-gas number density) or Wieland approximation [Van Brunt, R.J., 1987. Common parametrizations of electron transport, collision cross section, and dielectric ...
Crystallographic orientations of Ni3Al-based aluminide
(Elsevier Science Inc, New York, 2000)
Inverse pole figures have been plotted to determine preferred crystallographic orientations in a powder-compacted Ni3Al aluminide prealloyed with Fe, Ti and B. The main textural components, although weak, were noticeably ...